Power Distribution System Basics

Although we have not mentioned the details of each equipment used in an electrical power system.

Power distribution system basics. Electric power distribution is the final stage in the delivery of electric power. Primary distribution lines carry this medium voltage power to. Distribution substations connect to the transmission system and lower the transmission voltage to medium voltage ranging between 2 kv and 35 kv with the use of transformers. A distribution transformer also called as service transformer provides final transformation in the electric power distribution system it is basically a step down 3 phase transformer distribution transformer steps down the voltage to 400y 230 volts.

In order to transfer electrical power from an alternating current ac or a direct current dc source to the place where it will be used some type of distribution network must be utilized. Electrical distribution systems are an essential part of the electrical power system. There are lower and higher voltage applications involved in electric power systems but this is the range commonly used to cover gener ation through distribution and consumption. Power systems are based on alternating voltage applications from low volt age 120 volt residential systems to ultra high voltage 765 000 volt transmis sion systems.

Find free wordpress themes and plugins. Electric power distribution system basics. It carries electricity from the transmission system to individual consumers. A one line diagram for an electric power distribution system is an electrical drawing that uses single lines and graphic symbols to illustrate the current path voltage values circuit disconnects.

Regardless of the size and applications the ultimate goal remains universal. This was the basic structure of an electrical power system. After secondary transmission or primary distribution again we step down the voltage to a desired low voltage level to distribute at the consumer premises. The economic and safe delivery of adequate electric power to electrical equipment.

An example of a power system is the electrical grid that provides power to homes and industry within an extended area. Transfering ac dc electrical power. The electrical grid can be broadly divided into the generators that supply the power the transmission system that carries the power from the generating centres.